Support for spinning-frame spindles



(No Model.)

G. E. TAFT & H. 1?..WO0DMANGY. SUPPORT POP SPINNING PPAMP SPINDLPS.

Patented Oot. 15, 1889.

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WITNE555 UNITED STATES PATENT OFFICE.

GUSTAVUS E. TAFT AND HENRY F. VOODMANOY, OF VIIITINSVILLE, AS-

SIGNORS, BY MESNE ASSIGNMENTS, TO THE SAVVYER SPINDLE COMPANY,

OF BOSTON, MASSACHUSETTS.

SUPPOR-l FOR SPINNING-FRAME SPINDLES.

SEEGIFICATION forming part of Letters Patent No. 412,996, dated October15, 1889.

Application filed October 3, 1885. Serial No. 178,913. (No model.)

To @ZZ whom it may concern.:

Be it known that we, GUsTAVUS E. TAFT and HENRY F. WooDMnNoY, citizensof the United States, residing at Whitinsville, in

the county of lVorcester and Stateof Massachusetts, have inventedcertain new and useful Improvements in Supports for Spinning- FrameSpindles, of which the following is a specification, reference being hadtherein to 1o the accompanying drawings.

Our present invention relates to the bolster and its bearing in thebolster-case for supporting the spindles of spinning-machines.

The obj ects of our invention are to prevent the chatter, vibration, andnoise in spinningmachine spindles running at high speed and to secure afirm lateral support for the spindle-bolster, (metal against metaL)which support presents a large surface and prevents zo the driving-bandfrom vdrawing the spindle out of its true vertical position. Ve attainthese objects by the construction illustrated in the accompanyingdrawings, in whioh Figure 1 is a vertical section showing a 2 5 spindleprovided with a sleeve-whirl supported in a combined bolster and stepsecured in a bolstercase constructed according to our invention. Fig. 2is a vertical section through the bolstencase. Fig. 8 is a verticalsection 3o of the combined bolster and step. Fig. 4L is a side view ofthe same.

Heretofore many attempts have been made to secure a spinning-machinespindle that can be run at a high speed without the thumping,

3 5 jarring,heating,wabbling, and uneasy motion of spindles running athigh speed, the most common method being by means of bolsters havingmore or less freedom within their supporting cases or holders, held inthe vertical 4o position by means of elastic packing or springs placedso as to bear against the bolster, so that (in accordance with thetheory set forth in most patents relating to such structures) thespindle can automatically adj ust itself to any change in the center ofgravity caused by any inequality of bobbin or the yarn load on thespindle.

After a series of practical experiments we have constructed a combinedbolster and step for spinning-machine spindles which has a 5o firmsupport of considerable length in the bolster-case at tho upper end ofthe bolster, which support extends above and below the center of thewhirl, so that'the pull of the drivin g-band cannot change the verticalaxial 5 5 position of the bolster by moving the spindle and bolsterlaterally, and have given the step the capacity of slight lateral play.We support this combined bolster and step on an elastic disk placed inthe bottom of the bol- 6o ster-case, and find that this spindle can berun at the highest practical speed without noise, heating,wabbling, orthe uneasy motion incidental to other spindles provided with bolsters asheretofore constructed.

In the drawings, A is the bolsterecase provided with the iiange a, bywhich it rests on the bolsterrail, and the screw-thread a on which ascrew-nut is placed, which, bybeing screwed against the lower surface ofthe bol- 7o ster-rail, secures the bolster-oase in the bolster-rail. y

The bolster-case A is provided with the tube c? extending above the anged. The bore of the tube a2 is bored and finished to 75 form a cylinderof uniform diameter, or as nearly so as the modern tools and usual skillwill make it.

a3 is a shallow groove formed on the inner surface of the tube a2.. 8o

a4 is an enlargement of the bore of the bolster-case A, which forms anoil-reservoir.

d5 is a pin projecting from the bottom of the bolster-case.

. a is an oilfcup surrounding the tube a2 and 85 connecting, by a ductor ducts, with the oilreservoir c4. This oil-cup a6 is covered by alight sheet-metal ring made convex on top and extending over and beyondthe outer edge of the oil-cup. This form prevents the lodg- 9o ment ofdust and lint on the cap and allows the cap to be easily raised whenoiling.

B is the combined. bolster and step which forms the bearing for thespindle. The upper portion b is turned and nished of uniform diameterthroughout, or as nearly so as modern tools and skilled workmen willmake it.

rlhe portion b of the bolster B is of a di ameter to iit the bore of thetube a2 of the bolster-case A and allow the combined bolster and step tobe inserted or removed when required. The it between. the bolster thewhole length of the enlargement b and the bore of the tube a2 of thebolster-case is not a driven tit, but a close sliding t, the peripheryot the bolster the whole length of the enlargement b being in contactwith the interior cylindrical surface of the tube a2, so as to secure abearing for the bolster in the bolstercase and hold the same againstlateral movement in any direction, and also maint-ain the axial relationof the bolster to the bolstercase by reason of the length of thisbearing, which, as is clearly shown in Fig. l, extends from a pointabove to a point below the whirl. The lower portion of the combinedbolster and step at h is of less diameter than the bore of thebolster-case, thus allowing lateral play of the step, as hereinbetorestated, and the extreme lower end is formed into the cup b2, in which adisk of elastic material b4 is secured, which, resting'on the pin a5,acts as an elastic cushion interposed between the metal of the combinedbolster and step and the bottom of the bolster-case. That part. of thetube which connects the parts b and b has walls so thin that this partwill bend elastically to allow the step li to move laterally with thefoot of the spindle to the slight extent required in high-speedspindles.

D is thespindle, provided with the sleeve- `whirl cl, which surroundsthe tube a2 of the bolster-case A and the upper end l) of the combinedbolster and step B. The lower end of the spindle rests in the step ofthe combined bolster and step at b, and has the usual t and bearing atthe upper end of the bolster-tube at b on a line with the whirl.

To prevent the spindle and bolster-tube from turning together from thewant of proper lubrication or the binding of the spindle in thebolster-tube, thefbolster-tube is providedclaim as new and desire tosecure by Letters Patentl. A combined bolster and step having its upperpart of a diameter to closely lit the bolster-case above and below thecenter of the whirl, and its lower end provided with a chamber and anelastic disk placed within vsaid chamber, in combination with abolstercase provided with an internal stem projecting upward from itsbottom to support the bolster upon its elast-ic disk, substantially asand for the purpose described.

2. The combination of a spinning-spindle and its whirl, and abolster-case provided with an internal stem projecting upward from itsbottom, with a combined bolster and step having' a chamber and elasticdisk in its lower end, its upper part b forming a cylinder to titclosely intoV the bolster-case above and below the center of the whirl,as and for the purpose described.

3. A spindle-support consisting' of a combined bolster and step, and thebolster-case supporting and inclosing it and forming a close-ttingbearing for the bolster above and below the center of the whirl, and aloose fit on the lower portion of the bolster, in combination with aspindle and whirl, as described.

4. The combination of a spindle and whirl with a spindle-supportconsisting of a bolster-case constructed to be secured to aspinning-machine and form an oil-reservoir from which oil is supplied tothe spindle-bearings,

case forming an oil-reservoir, and a bolster-- tube containing thebolster and step bearings held in the bolster-case firmly againstlateral motion above the whirl and below the same, the step portionbeing of less diameter than the interior of the bolster-case, and anelastic or yielding cushion supporting said bolster and step bearing, asdescribed.

6. The combination, with the bolster-case A and the bolster-tube B,rigidly secured in the bolster-case against axial or lateral motion nearthe upper end, of an elastic or yielding material supporting saidbolster-tube to form a yielding vertical bearing for the spindle, asIand for the purpose set forth.

7. The combination, with the bolster-case and the sleeve whirl-spindle,of the tube B, containing bolster and step bearings for the spindle, thesaid tube being xed in the bolster-case at l) opposite thebolster-bearing within the sleeve-whirl to resist the band- ICO IIO

pull and supported within the chamber of the bolster-case, the saidbolster-bearing extending both above and below the center of the whirl,substantially as described.

S. The combination, with the sleeve whirlspindle, of a tube B,containing the bolster and step bearings of the spindle, and a supportfor the said tube supporting the latter within the whirl to resist theband-pull, the said tube extending below the point of its support, andthe bolster-bearing extending both above and below the center of thewhirl, substantially as described.

9. A sleeve whirl-spindle and a rigid bolster or Support therefor belowits junction with the Whirl, combined With a step and means to supportthe sanie loosely and permit it to niove laterally with the foot of thespindle.

lO. The combination, With a sleeve whirlspindle, of a holster ease orsupport having a rigid bearing therein for the spindle7 the sleeve-Whirlsurrounding the said bearing so that the hand pulls the spindle againstthe said rigid bearing, and a step mounted loosely in the bolster easeor support to inove laterally therein with the foot of the spindle.

1l. The combination, With a holder having a rigid bearing therein and aspindle, of a Cushioned stepdiearing having both vertical and lateralmotion in or With relation to the said holder.

12. The combination of a bolster-ease with bolster and step bearingsplaced therein., the said ease having an oil-chamber and oonst-rueted tohold the bolster or upper bearing against axial or lateral inotion, andthe step or lower bearing having lateral motion.

3. The combination, with the bolster-oase and the bearing-tube rigidlysecured in the bolster-ease against axial or lateral motion near theupper end, of an elastic or yielding support for the said bearing-tubeto forni a yielding vertical hearing for the spindle.

ln testimony whereof We affix our signatures in presence of tWoWitnesses.

GUSTAVUS E. TAFT. HENRY F. VOODMANCY. lVitnesse,

W. E. JOHNSON, C. A. TAFT.

